Java Community | Help. Code. Learn.•6mo ago

Exception Handling in Spring

Hey i am getting 500 response code instead of 404 even after handling the exception

package com.ShelfSpace.ShelfSpace.exception;

public class ResourceNotFoundException extends RuntimeException {

    public ResourceNotFoundException() {
        super();
    }

    public ResourceNotFoundException(String message) {
        super(message);
    }

    public ResourceNotFoundException(String message, Throwable throwable) {
        super(message, throwable);
    }
}

package com.ShelfSpace.ShelfSpace.exception;

public class ResourceNotFoundException extends RuntimeException {

    public ResourceNotFoundException() {
        super();
    }

    public ResourceNotFoundException(String message) {
        super(message);
    }

    public ResourceNotFoundException(String message, Throwable throwable) {
        super(message, throwable);
    }
}

14 Replies

JavaBot•6mo ago

⌛ This post has been reserved for your question.

Hey @Danix! Please use /close or the Close Post button above when your problem is solved. Please remember to follow the help guidelines. This post will be automatically closed after 300 minutes of inactivity.

TIP: Narrow down your issue to simple and precise questions to maximize the chance that others will reply in here.

DanixOP•6mo ago

@RestControllerAdvice
public class GlobalExceptionHandler {
@ExceptionHandler(ResourceNotFoundException.class)
    @ResponseStatus(code = HttpStatus.NOT_FOUND) /// If the data is not successfully comeout from the External
                                                 /// Api
    public Map<String, String> handleResourceNotFoundException(ResourceNotFoundException exception) {

        Map<String, String> errorMap = new HashMap<>();
        errorMap.put("Error", exception.getMessage());
        return errorMap;
    }
}

@RestControllerAdvice
public class GlobalExceptionHandler {
@ExceptionHandler(ResourceNotFoundException.class)
    @ResponseStatus(code = HttpStatus.NOT_FOUND) /// If the data is not successfully comeout from the External
                                                 /// Api
    public Map<String, String> handleResourceNotFoundException(ResourceNotFoundException exception) {

        Map<String, String> errorMap = new HashMap<>();
        errorMap.put("Error", exception.getMessage());
        return errorMap;
    }
}

@GetMapping("/getAllStudents")
    public ResponseEntity<List<StudentDetailsDto>> getAllStudents() {
        Optional<List<StudentDetails>> studentDetailsIt = detailsService.getAllStudent();
        List<StudentDetailsDto> studentDetailsList = new ArrayList<>();

        studentDetailsIt.get().forEach(studentDetails -> {
            studentDetailsList.add(StudentDetailsDtoMapper.toDto(studentDetails));
        });
        return new ResponseEntity<>(studentDetailsList, HttpStatus.OK);

    }

@GetMapping("/getAllStudents")
    public ResponseEntity<List<StudentDetailsDto>> getAllStudents() {
        Optional<List<StudentDetails>> studentDetailsIt = detailsService.getAllStudent();
        List<StudentDetailsDto> studentDetailsList = new ArrayList<>();

        studentDetailsIt.get().forEach(studentDetails -> {
            studentDetailsList.add(StudentDetailsDtoMapper.toDto(studentDetails));
        });
        return new ResponseEntity<>(studentDetailsList, HttpStatus.OK);

    }

@Override
    public Optional<List<StudentDetails>> getAllStudent() {
        List<StudentDetails> studentDetailsList = detailsRepository.findAll();
        if (studentDetailsList.isEmpty()) {
            throw new ResourceNotFoundException("No Resource founded");
        }
        return Optional.of(studentDetailsList);
    }

@Override
    public Optional<List<StudentDetails>> getAllStudent() {
        List<StudentDetails> studentDetailsList = detailsRepository.findAll();
        if (studentDetailsList.isEmpty()) {
            throw new ResourceNotFoundException("No Resource founded");
        }
        return Optional.of(studentDetailsList);
    }

Peter Rader•6mo ago

Try add the@ResponseStatus(HttpStatus.NOT_FOUND) on the exception-class.

DanixOP•6mo ago

already did it but no changement after that

Peter Rader•6mo ago

Ah ok. What spring version? 4.2?

DanixOP•6mo ago

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.3.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.3.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

This one

Peter Rader•6mo ago

Ok. Then I need more informations. Please show the stacktrace (obfuscate things you need to hide).

DanixOP•6mo ago

message.txt

szatkus•6mo ago

You should return an empty optional if resource is not found and handle it in the controller. Although this code should work there's no reason to add piles of magic.

tjoener•6mo ago

Hmm, your service handles the business logic, so if you expect to get a value from the database there and you don't have it, that's the place to throw an exception, not in the controller. The controller should handle any unexpected exceptions that come up though, because that's it's task

szatkus•6mo ago

Doesn't sound like a case for exceptions. Missing value isn't anything exceptional. Although this whole code is a mess. Somehow it returns a list that is packed in Optional...

tjoener•6mo ago

It is if you actually expect it to be there. But I agree on the second point

Peter Rader•5mo ago

Are you sure? Can you prove it by show the code?

JavaBot•5mo ago

💤 Post marked as dormant

This post has been inactive for over 300 minutes, thus, it has been archived. If your question was not answered yet, feel free to re-open this post or create a new one. In case your post is not getting any attention, you can try to use /help ping. Warning: abusing this will result in moderative actions taken against you.

Gaming

Programming

Exception Handling in Spring

Did you find this page helpful?